Indoor secondhand tobacco smoke emission levels in six Lebanese cities

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Abstract

Background: To date, Lebanon has failed to enact comprehensive clean indoor air laws despite ratification of the Framework Convention on Tobacco Control (FCTC), which calls for the protection of non-smokers from exposure to secondhand tobacco smoke (SHS). Complicating the problem of SHS exposure in Lebanon is the widespread use of the tobacco water-pipe. While most research on SHS has involved cigarette smoking as a source of emissions, other sources, including tobacco water-pipes, may be an important contributor. Methods: PM2.5 concentrations (μg/m3) were measured in a sample of 28 public venues located in six major Lebanese cities. Active smoker density (number of smokers/100 m3) was calculated for both Water-pipe and cigarette smokers. Venues were then categorised as having higher density of Water-pipe smokers or higher density of cigarette smokers, and resultant emission levels were compared between the two groups. Results: Cigarette and Water-pipe smoking was observed in 14 venues, while cigarette smoking only and Water-pipe smoking only were found in 12 venues and one venue, respectively. Among all smoking-permitted venues, the mean PM2.5 concentration was 342 μg/m3. Venues with a higher density of Water-pipe smokers (n=14) showed a similar median PM2.5 concentration (349 μg/m3) compared with venues with a higher density of cigarette smokers (n=13; 241 μg/m3; p=0.159). The mean PM2.5 concentration in the single venue with a voluntary smoke-free policy was 6 μg/m3. Conclusions: Despite ratification of the FCTC in 2005, both cigarette and Water-pipe smoking are commonly practised in enclosed public places throughout Lebanon, leading to unsafe levels of indoor particulate pollution. Smoke-free policies are needed in Lebanon to protect the public's health, and should apply to all forms of tobacco smoking.

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APA

Saade, G., Seidenberg, A. B., Rees, V. W., Otrock, Z., & Connolly, G. N. (2010). Indoor secondhand tobacco smoke emission levels in six Lebanese cities. Tobacco Control, 19(2), 138–142. https://doi.org/10.1136/tc.2009.030460

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